Motor controller for a compressor



FIG. 1 is a front view of a motor controller for a compressor showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left-hand side view thereof;

FIG. 4 is a right-hand side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a front, left-hand side perspective view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design. 

The ornamental design for a motor controller for a compressor, substantially as shown and described. 